Tree Risk Self-Check Worksheet
A printable, walk-the-property checklist for spotting the tree hazard signs worth having looked at professionally.
Not every tree risk assessment is the same amount of looking
The phrase "tree risk assessment" covers everything from a five-minute walk-by to a multi-visit workup with instruments. The International Society of Arboriculture's TRAQ framework names three levels so everyone — property owner, assessor, insurer — means the same thing by the term. Here is what each one actually is.
Ask which level a tree needsWhy the level matters more than the word "assessed"
A property owner who is told a tree was "assessed" has learned almost nothing about how thoroughly it was looked at. The International Society of Arboriculture — the trade organization that maintains arboriculture's credentialing and best-practice standards — publishes a structured framework called TRAQ, the Tree Risk Assessment Qualification, and the assessments built on it are organized into three levels of increasing depth. The levels are not a ranking of assessor skill; they describe how much of the tree gets examined and by what means, and a lower level is a legitimate, appropriate choice for plenty of situations. What matters is that the level actually matches what the situation calls for, and that whoever tells you a tree is "fine" or "a concern" can say which level of look that conclusion is based on. This page explains the three levels in plain terms so that when a tree risk assessment gets discussed for your property, you know what question to ask about how it was done.
The three TRAQ levels
- Level 1 — Limited Visual AssessmentA brief look at a tree or group of trees from one vantage point, often a windshield survey of many trees on a property or along a route, meant to flag obvious concerns rather than evaluate any one tree in depth. It is a screening tool, not a conclusion about a specific tree's condition — its job is to identify which trees, out of many, deserve a closer look.
- Level 2 — Basic AssessmentA full visual inspection of one tree from the ground, walking around the entire trunk and looking up into the canopy, checking the site and the area the tree could reach if it failed. This is the level most individual property tree concerns actually call for — it is thorough enough to identify the visible defects that drive most risk findings (dead wood, cracks, lean, decay indicators, root-zone disturbance) without requiring specialized equipment.
- Level 3 — Advanced AssessmentOne or more specialized diagnostic methods layered onto a Level 2 — resistance drilling or sonic tomography to estimate internal decay, aerial inspection of the upper canopy, root-collar excavation, or load testing, depending on what the Level 2 flagged as needing more certainty than a visual check can give. Advanced assessment is reserved for cases where the visible evidence is ambiguous and the tree is significant enough — by size, location, or target below it — to justify the added cost and time of instrumented investigation.
How this maps onto an actual San Diego County property
Most residential situations resolve at Level 2: a homeowner notices something — a lean, dead branches, a mushroom at the base — and wants a real answer, not a guess from the curb. Level 1 shows up more on larger properties, HOA-managed common areas, or after a windstorm, when the question is which of many trees needs individual attention first. Level 3 gets reached for less often, and almost always because a Level 2 assessment found something specific it could not resolve visually — internal decay suspected under otherwise sound-looking bark, for instance, where the difference between "monitor it" and "remove it" genuinely depends on how much sound wood is left holding the tree up. None of this is a credentialing claim about any specific assessor; it is the shared vocabulary the industry uses so a property owner can ask a precise question — "what level was this?" — instead of an unanswerable one.
Questions people ask
Do I need to ask for a specific level, or does the assessor decide?
The assessor should recommend a level based on what they see and what is at stake — a Level 1 screening can lead directly to a recommendation for Level 2 on one specific tree, and a Level 2 can lead to a Level 3 recommendation if something visible is inconclusive. You can absolutely ask which level is being performed and why; a straight answer to that question is itself a reasonable indicator of how seriously the assessment is being handled.
Is a Level 1 assessment enough to decide whether to remove a tree?
Generally no, on its own. Level 1 is a screening pass across multiple trees meant to identify which ones need closer individual attention, not a final judgment on any single tree's condition. A removal decision for one specific tree usually rests on at least a Level 2 assessment of that tree.
Does a higher level always mean a scarier finding?
No — a Level 3 assessment can just as easily confirm that a tree is structurally sound as confirm a serious defect. Its purpose is certainty, not alarm. Escalating to instrumented testing is often what prevents an unnecessary removal, by replacing an ambiguous visual impression with an actual measurement of how much sound wood remains.
Does TRAQ apply only to arborists, or to any tree evaluation?
TRAQ is the International Society of Arboriculture's specific credentialing framework, and it describes a structured, documented process. Plenty of casual "does this tree look okay" conversations happen without any of this vocabulary attached, which is fine for a quick gut check — but once a real decision is riding on the answer, knowing which level of assessment actually happened is what separates an informed decision from an assumption.
Where can I read more about the framework itself?
The International Society of Arboriculture (isa-arbor.com) publishes and maintains the TRAQ credential and its underlying best-management-practice standards. This page summarizes the framework in plain language; it is not a substitute for that source, and it does not assert that any specific assessor connected through this site holds the credential unless that has been independently verified.
Related services
Tree Inspection
A documented visual assessment of a tree's condition and what it means for next steps.
Hazardous Tree Removal
Removal of a tree with documented risk indicators found during a professional assessment.
Arborist Services
Professional evaluation of a tree's health, structure, and care needs — before deciding what to do next.
Tell us what you're seeing
A lean, dead wood, a crack, a mushroom at the base, or just a tree that feels different than it used to — describe it and we'll help you figure out what level of look it actually needs.
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